Decanta

Delilah is a character of the day who appeared in Performing with Fiery Charm!. She is a "Showcase Expert" who acted as one of the judges of the Dendemille Town Rookie Class Pokémon Showcase along with Gena and Santo.

During the Theme Performance, she had her Furfrou evaluate the Poké Puffs made by the Performers. They let Miette, Jessilia, and Serena advance to the Freestyle Performance. At the end of the second round, she voted along with the audience to decide the winner of the Pokémon Showcase and was shown to vote for Jessie.

(Source: Bulbapedia)